GB2441269A - Underwater remote sensing - Google Patents

Underwater remote sensing

Info

Publication number
GB2441269A
GB2441269A GB0724359A GB0724359A GB2441269A GB 2441269 A GB2441269 A GB 2441269A GB 0724359 A GB0724359 A GB 0724359A GB 0724359 A GB0724359 A GB 0724359A GB 2441269 A GB2441269 A GB 2441269A
Authority
GB
United Kingdom
Prior art keywords
receiver
remote sensing
underwater remote
underwater
transmitter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB0724359A
Other versions
GB2441269B (en
GB0724359D0 (en
Inventor
Mark Rhodes
Brendan Hyland
Derek Wolfe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WFS Technologies Ltd
Original Assignee
WFS Technologies Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB0511944A external-priority patent/GB0511944D0/en
Application filed by WFS Technologies Ltd filed Critical WFS Technologies Ltd
Publication of GB0724359D0 publication Critical patent/GB0724359D0/en
Publication of GB2441269A publication Critical patent/GB2441269A/en
Priority to GB0913321A priority Critical patent/GB2459218B/en
Application granted granted Critical
Publication of GB2441269B publication Critical patent/GB2441269B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/04—Adaptation for subterranean or subaqueous use
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/28—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived simultaneously from receiving antennas or antenna systems having differently-oriented directivity characteristics
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

An underwater remote sensing system comprising a transmitter for transmitting an electromagnetic signal, a receiver for receiving an electromagnetic signal reflected from an object and determining means for determining the location of the object, wherein at least one of the transmitter and receiver is underwater. The determining means may be operable to determine the location of the object using signals received at three or more receiver positions. To do this, three or more receiver antennas may be provided. Alternatively, a single receiver antenna may be provided and moved between three or more different measurement locations.
GB0724359A 2005-06-13 2007-12-14 Underwater remote sensing Expired - Fee Related GB2441269B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0913321A GB2459218B (en) 2005-06-13 2009-07-31 Underwater signal direction determination

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0511944A GB0511944D0 (en) 2005-06-13 2005-06-13 Underwater remote sensing
US69096405P 2005-06-15 2005-06-15
PCT/GB2006/002114 WO2006134329A2 (en) 2005-06-13 2006-06-09 Underwater remote sensing

Publications (3)

Publication Number Publication Date
GB0724359D0 GB0724359D0 (en) 2008-01-30
GB2441269A true GB2441269A (en) 2008-02-27
GB2441269B GB2441269B (en) 2009-09-30

Family

ID=37027447

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0724359A Expired - Fee Related GB2441269B (en) 2005-06-13 2007-12-14 Underwater remote sensing

Country Status (2)

Country Link
GB (1) GB2441269B (en)
WO (1) WO2006134329A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1891457B1 (en) 2005-06-13 2011-03-23 WFS Technologies Limited Underwater navigation
US9110183B2 (en) 2006-12-06 2015-08-18 Technoimaging, Llc Systems and methods for remote electromagnetic exploration for mineral and energy resources using stationary long-range transmitters
GB2452743B (en) * 2007-09-13 2012-08-29 Clipper Data Ltd Improvements relating to diving equipment
US9435908B2 (en) 2009-04-01 2016-09-06 Fmc Technologies, Inc. Wireless subsea monitoring and control system
US9322910B2 (en) 2011-07-15 2016-04-26 Technoimaging, Llc Method of real time subsurface imaging using electromagnetic data acquired from moving platforms
WO2015026650A1 (en) * 2013-08-20 2015-02-26 Technoimaging, Llc Systems and methods for remote electromagnetic exploration for mineral and energy resources using stationary long-range transmitters
US9490873B2 (en) * 2014-10-02 2016-11-08 Raytheon Company Methods and apparatus for underwater electrical near-field signal system
CN109269993A (en) * 2018-10-15 2019-01-25 广州地理研究所 A kind of recognition methods of dissolved oxygen, device, storage medium and equipment
US11150341B2 (en) * 2020-02-18 2021-10-19 HG Partners, LLC Continuous-wave radar system for detecting ferrous and non-ferrous metals in saltwater environments
CN115308815B (en) * 2022-10-11 2023-03-24 中国海洋大学 Automatic monitoring method and device for accidental water outlet of submarine electromagnetic exploration device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3052837A (en) * 1958-12-24 1962-09-04 Shell Oil Co Pipe finder
US3835371A (en) * 1972-07-27 1974-09-10 M Mirdadian Apparatus for detecting the presence of electrically conductive material within a given sensing area
US6335624B1 (en) * 1999-06-02 2002-01-01 Commissariat A L'energie Atomique Process for electromagnetic detection of conducting objects
GB2395280A (en) * 2002-09-25 2004-05-19 Vt Tss Ltd Processing data from an inductive sensor to detect an electrically conductive target

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03138582A (en) * 1989-10-25 1991-06-12 Nec Corp Underwater azimuth and distance measuring instrument

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3052837A (en) * 1958-12-24 1962-09-04 Shell Oil Co Pipe finder
US3835371A (en) * 1972-07-27 1974-09-10 M Mirdadian Apparatus for detecting the presence of electrically conductive material within a given sensing area
US6335624B1 (en) * 1999-06-02 2002-01-01 Commissariat A L'energie Atomique Process for electromagnetic detection of conducting objects
GB2395280A (en) * 2002-09-25 2004-05-19 Vt Tss Ltd Processing data from an inductive sensor to detect an electrically conductive target

Also Published As

Publication number Publication date
GB2441269B (en) 2009-09-30
WO2006134329A3 (en) 2007-03-29
WO2006134329A2 (en) 2006-12-21
GB0724359D0 (en) 2008-01-30

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20140609